Algumas Contribuições para a Modelagem de Programas Paralelos MPI

Hélio M. de OliveiraJean M. LaineEdson T. Midorikawa

Performance evaluation and prediction of parallel programs is becoming more and more important, so that it requires appropriate techniques to identify the factors that influence the performance of an application and also the way they interact. In this work, we present some contributions of our research in this area. First of all, we introduce a graphical model to represent parallel programs accurately and clearly. We also describe the modeling of some MPI collective communication primitives. In order to prove our contributions, we have modeled and accomplished experimental procedures with two programs on a cluster: a matrix multiplication and a temperature propagation simulation. The obtained results present errors less than 9% and 2, 5% respectively.

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